1 /*
2 * JFFS2 -- Journalling Flash File System, Version 2.
3 *
4 * Copyright © 2006 NEC Corporation
5 *
6 * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
7 *
8 * For licensing information, see the file 'LICENCE' in this directory.
9 *
10 */
11
12 #include <linux/kernel.h>
13 #include <linux/fs.h>
14 #include <linux/jffs2.h>
15 #include <linux/xattr.h>
16 #include <linux/mtd/mtd.h>
17 #include "nodelist.h"
18
19 static int jffs2_trusted_getxattr(struct inode *inode, const char *name,
20 void *buffer, size_t size)
21 {
22 if (!strcmp(name, ""))
23 return -EINVAL;
24 return do_jffs2_getxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size);
25 }
26
27 static int jffs2_trusted_setxattr(struct inode *inode, const char *name, const void *buffer,
28 size_t size, int flags)
29 {
30 if (!strcmp(name, ""))
31 return -EINVAL;
32 return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size, flags);
33 }
34
35 static size_t jffs2_trusted_listxattr(struct inode *inode, char *list, size_t list_size,
36 const char *name, size_t name_len)
37 {
38 size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1;
39
40 if (list && retlen<=list_size) {
41 strcpy(list, XATTR_TRUSTED_PREFIX);
42 strcpy(list + XATTR_TRUSTED_PREFIX_LEN, name);
43 }
44
45 return retlen;
46 }
47
48 struct xattr_handler jffs2_trusted_xattr_handler = {
49 .prefix = XATTR_TRUSTED_PREFIX,
50 .list = jffs2_trusted_listxattr,
51 .set = jffs2_trusted_setxattr,
52 .get = jffs2_trusted_getxattr
53 };
54
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